Rockwell-automation 1797-IJ2 FLEX Ex Frequency Input Module Bedienungsanleitung PDF herunterladen (Seite 29)

FLEX Ex Frequency Input Module 29

Publication

1797-5.9 - June 2010

The entity concept allows interconnection of intrinsically safe apparatus

with associated apparatus not specifically examined in combination as a

system when the approved values of V

and I

or V

and I

of the associated

apparatus are less than or equal to V

max

and I

max

of the intrinsically safe

apparatus and the approved values of C

and L

of the associated apparatus

are greater than C

+ C

cable

and L

+ L

cable

respectively for the intrinsically safe

apparatus.

Simple apparatus is defined as a device which neither generates nor

stores more than 1.2V, 0.1 A, 20 J, or 25 mW.

Wiring methods must be in accordance with the National Electric Code,

ANSI/NFPA 70, Article 504 and 505. For additional information refer to

ANSI/ISA RP12.6.

This module, 1797-IJ2, must be used with terminal base 1797-TB3 or

1797-TB3S.

Terminals 19, 30, 36, 38, 39, and 47…49 shall not be connected.



WARNING

Substitution of components may impair intrinsic safety

AVERTISSEMENT

La substitution de composant peut compromettre la securite

intrinseque.

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Rockwell-automation 1797-IJ2 FLEX Ex Frequency Input Module Bedienungsanleitung Seite 29